Anxiety for Advanced Illness

Since 2 weeks ago since my doctor and I discussed my PET scan results, which said that my prostate cancer has been spread out to the bones, I have been living in anxiety and depressed. This is even though my doctor told me that it is not terminal and that there still are some other treatments.

Any tips to stop overthinking?

But my mood still sometimes feels down because I tried quimo, immunotherapy, and Nubeqa. Now my oncologist referred me to an oncologist radiologist in order to start an IV radiation treatment, but still my mood sometimes is down.

So if you know any technique in order to stop overthinking about it, let me know. And with that radiation treatment and what would be my limitations. I don't want to Google it cause there is a lot of bad statics about the topic. Thank you.